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Zenroom

Zenroom is a portable, isolated virtual machine for executing cryptographic operations and workflows written in Zencode, a human-readable language. Developers can use it to build privacy-preserving applications, smart contracts and secure data workflows.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Zenroom — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Zenroom when a software project needs an isolated virtual machine to execute cryptographic workflows expressed in Zencode, and when the target environment is supported by a listed build target or integration.

Who it is for

  • Developers adding cryptographic operations to applications or services.
  • Teams building privacy-preserving data workflows or smart-contract components.
  • Developers seeking an engine that can be built for multiple environments, including browser and mobile targets.

Documented uses

  • Express cryptographic logic in Zencode.
  • Run operations such as signatures, hashing, zero-knowledge proofs and credentials.
  • Incorporate cryptographic workflows into applications, smart contracts or secure data processing.
Before you choose

Requirements & limits

  • Zenroom is an engine for developers to integrate, not a complete end-user wallet or application.
  • The repository lists C as its primary language and supports building an executable or C library.
  • Listed targets include WebAssembly for JavaScript in-browser, as well as Linux, Windows, macOS and iOS targets.
  • Local builds require make, CMake, GCC, libreadline-dev and xxd; Emscripten is optional for WebAssembly builds.
  • The repository metadata lists the AGPL-3.0 license.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Build Zenroom locally

Prepare to build Zenroom as an executable or C library.

Before you start

  • make
  • CMake
  • GCC
  • libreadline-dev
  • xxd

Steps

  1. Install the listed build dependencies.

  2. Run make to display the available build targets.

  3. Choose a listed executable or library target for the intended platform.

Expected outcome

The build system lists platform targets for executable and library builds, including POSIX, Linux, Windows, macOS and iOS.

Guide limitations

  • Emscripten is additionally required for WebAssembly builds.
  • The README lists targets but does not provide target-specific build commands in the documented quick-start instructions.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
10 October 2026
Original website title
dyne/Zenroom · Official homepage title · retained in its source language
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